JT-20KW Cummins Industrial Generator
20kW Prime Power | Compact, Reliable Energy for Small-Scale Industrial, Agricultural & Remote Use

- Engine: Genuine Cummins 4B3.9-G2 4-Cylinder Turbocharged
- Certifications: ISO9001, CE, SONCAP, PVoC, NRCS, SIRIM, SNI, TISI
- Support: Global Technical Assistance & Factory-Direct Logistics
Product Overview
The JT-20KW is the most compact Cummins-powered solution in our lineup, featuring the robust 4B3.9-G2 engine. Designed specifically for small-scale operations—including family farms, telecom micro-base stations, and remote retail outlets—this 25kVA unit combines ultra-quiet operation (68-70dB(A)) with a lightweight, transportable chassis. With a 500-hour maintenance cycle and full global parts availability, it is the professional choice for off-grid and emergency standby power.
Technical Specifications
| Category | Specification |
|---|---|
| Prime Power | 20 kW / 25 kVA |
| Standby Power | 22 kW / 27.5 kVA |
| Voltage / Frequency | 400/230V · 50 Hz |
| Rated Current | 36 A |
| Engine Model | Cummins 4B3.9-G2 (3.9L, 4-Cyl) |
| Peak Torque | 420 N·m @ 1500 RPM |
| Alternator | Brushless, Self-exciting, H-Class |
| Fuel Consumption | 214–222 g/kW·h (100% Load) |
| Maintenance Interval | 500 Working Hours |
| Dimensions (L×W×H) | 3,000 × 1,300 × 1,800 mm |
| Dry Weight | 1.8 t |
| Certifications | ISO, CE, SONCAP, PVoC, NRCS, SIRIM, SNI, TISI |
Why Choose JT-20KW?
1. Genuine Cummins Performance
The JT-20KW utilizes the factory-verified 4B3.9-G2 engine platform. Unlike domestic alternatives, you get transparent power curves, verified fuel data, and consistent reliability from a world-leading manufacturer.
2. Ultra-Quiet Nighttime Operation
Operating at just 68-70dB(A), this is the quietest unit in our Cummins range. It is ideal for residential-adjacent sites, rural clinics, or family farms where noise pollution is a significant concern.
3. Maximum Portability
With a 1.8-tonne weight and a compact 3-meter footprint, this generator can be transported by standard flatbed pickup trucks, significantly reducing logistics costs for remote or off-grid sites.
4. Optimized for Seasonal Duty
The 500-hour service interval is perfect for intermittent agricultural or telecom use, reducing the necessity of frequent maintenance visits compared to generic units that require service every 200 hours.
5. Global Parts Availability
The 4B3.9 series is a workhorse engine used worldwide in construction and agriculture. Spare parts are easily sourced throughout Africa, SE Asia, and Latin America, ensuring your equipment stays operational.
Get a Custom Quote
Factory-direct pricing, complete technical datasheets, and global shipping options are available. Get a response from our team within 24 business hours.







